javascript操作xml(增删改查)例子代码

包括了stu.hta(是HTML应用程序);
     stu.xml
注意下面的HTML代码必须保存为后缀名为hta否则当对XML文件进行操作(增删改)的时候就会提示没有权限!!

文件stu.hta代码如下:

代码
<html>
<head>
<title> 数据岛的显示 </title>
<style type="text/css">
#findPanel
{
position:absolute;
width:220px;
border:1px solid #
666666;
}

#findPanelTitle
{
height:10px;
background
-color:#336699;
cursor:move;
}

#findPanelContent
{
padding:5px 5px 5px 5px;
background
-color:#6699CC;
}
</style>

</head>
<body>
<SCRIPT LANGUAGE="JavaScript">
<!--

var xmlDoc
= new ActiveXObject("Msxml2.DOMDocument");
xmlDoc.async
= false;
xmlDoc.resolveExternals
= false;
xmlDoc.load(
"stu.xml");
//alert(xmlDoc.xml);
//显示数据
function show(){
var vbo
= document.getElementById("s").value;
if(vbo=="显示学生信息"){
document.getElementById(
'info').style.visibility='visible';
document.getElementById(
"s").value="隐藏学生信息";
}
else{
document.getElementById(
'info').style.visibility='hidden';
document.getElementById(
"s").value="显示学生信息";
}
}
//查找
function que(){
document.getElementById(
"ad").style.visibility="visible";
document.getElementById(
"qmd").style.visibility="visible";
}

/**
* 解析XML文件函数
* @param xmlDoc XML对象
* @param name 属性名称 格式如:user.name
*/
function getXMLProperty(xmlDoc, name) {
var keys
= name.split('.');
var node
= xmlDoc.documentElement;
for(var i=0; i<keys.length; i++) {
var childs
= node.childNodes;
var key
= keys[i];
for(var k=0; k<childs.length; k++) {
var child
= childs[k];
if(child.nodeName == key) {
if(child.childNodes.length == 1) {
return child.text;
}
else {
node
= child;
break;
}
}
}
}
return "";
}
//返回父节点(通过节点名字和节点值)
function getNod(nam,val){
var node
= xmlDoc.documentElement;
var childs
= node.childNodes;
for (var i=0;i<childs.length ;i++ )
{
var child
= childs[i];
var childms
= child.childNodes;
for(var k=0;k<childms.length;k++){
var childm
= childms[k];
if(childm.nodeName == nam && (childm.text).substring(0,6)==val){
//alert(val);
return child;
}
}
}
return '';
}
//通过父节点和子节点名返回子节点值
function getNodVal(nods,nam){
var childms
= nods.childNodes;
for(var k=0;k<childms.length;k++){
var childm
= childms[k];
if(childm.nodeName == nam){
//alert(childm.text);
return childm.text;
}
}

return '';
}
//通过父节点和子节点名返回子节点
function getCurNod(nods,nam){
var childms
= nods.childNodes;
for(var k=0;k<childms.length;k++){
var childm
= childms[k];
if(childm.nodeName == nam){
//alert(childm.text);
return childm;
}
}

return '';
}

//开始查找
function query(){
var renum
= /^\d{5}$/;
if(renum.exec(xh.value)){
if(xmlDoc.selectSingleNode("/学生管理[学生/学号="+xh.value+"]")){
var nod
= getNod('学号',xh.value);
//getNodVal(nod,'姓名');
//getNodVal(nod,'性别');
//getNodVal(nod,'籍贯');
/*document.getElementById("xm").value=xmlDoc.selectSingleNode("/学生管理[学生/学号="+xh.value+"]").selectSingleNode("学生/姓名").text;
document.getElementById("xb").value=xmlDoc.selectSingleNode("/学生管理[学生/学号="+xh.value+"]").selectSingleNode("学生/性别").text;
document.getElementById("jg").value=xmlDoc.selectSingleNode("/学生管理[学生/学号="+xh.value+"]").selectSingleNode("学生/籍贯").text;
document.getElementById("xh").disabled="true";
*/
document.getElementById(
"xm").value=getNodVal(nod,'姓名');
document.getElementById(
"xb").value= getNodVal(nod,'性别');
document.getElementById(
"jg").value= getNodVal(nod,'籍贯');
}
else{
alert(
"该学号还没有被占用!");
}
}
else{
alert(
"学号非法!学号5位数字!");
return false;
}
}
//修改
function mod(){
if(info_check()){
if(xmlDoc.selectSingleNode("/学生管理[学生/学号="+xh.value+"]")){
if(confirm("确认修改?")){
var nod
= getNod('学号',xh.value);
getCurNod(nod,
'姓名').text=xm.value;
getCurNod(nod,
'性别').text=xb.value;
getCurNod(nod,
'籍贯').text=jg.value;
/*
xmlDoc.selectSingleNode("/学生管理[学生/学号="+xh.value+"]").selectSingleNode("学生/姓名").text=xm.value;
xmlDoc.selectSingleNode("/学生管理[学生/学号="+xh.value+"]").selectSingleNode("学生/性别").text=xb.value;
xmlDoc.selectSingleNode("/学生管理[学生/学号="+xh.value+"]").selectSingleNode("学生/籍贯").text=jg.value;
*/
saveXML();
//document.getElementById("xh").disabled="false";
document.getElementById("xh").value="";
document.getElementById(
"xm").value="";
document.getElementById(
"xb").value="";
document.getElementById(
"jg").value="";
document.getElementById(
"ad").style.visibility="hidden";
document.getElementById(
"qmd").style.visibility="hidden";
alert(
"修改成功!");
location.reload();
}
}
else{
alert(
"该学号还没有被占用!请按学号查询再进行修改!");
return false;
}
}
}
//新增学生
function add(){
var vadd
= document.getElementById("add").value;
if(vadd=="新增"){
document.getElementById(
"xh").value="";
document.getElementById(
"xm").value="";
document.getElementById(
"xb").value="";
document.getElementById(
"jg").value="";
document.getElementById(
"qmd").style.visibility="hidden";
document.getElementById(
'info').style.visibility='hidden';
document.getElementById(
"s").value="显示学生信息";
document.getElementById(
"ad").style.visibility="visible";
document.getElementById(
"add").value="保存";
document.getElementById(
"can").style.visibility="visible";
}
else{
if(info_check()){
add_node();
saveXML();
document.getElementById(
"xh").value="";
document.getElementById(
"xm").value="";
document.getElementById(
"xb").value="";
document.getElementById(
"jg").value="";
document.getElementById(
"ad").style.visibility="hidden";
document.getElementById(
"qmd").style.visibility="hidden";
document.getElementById(
"add").value="新增";
alert(
"新增成功!");
location.reload();
}
}
}

//删除学生
function del(){
var renum
= /^\d{5}$/;
if(renum.exec(document.getElementById("xh").value)){
if(xmlDoc.selectSingleNode("/学生管理[学生/学号="+xh.value+"]")){
if(confirm("确认删除?")){
/*var node = xmlDoc.selectSingleNode("/学生管理[学生/学号="+xh.value+"]");
if(node.hasChildNodes()){
var kids = node.childNodes;
for(var i=0;i<kids.length;i++){
del();
}
}
node.parentNode.removeChild(node);
*/
var nod
= getNod('学号',xh.value);
nod.parentNode.removeChild(nod);

saveXML();
can();
alert(
"删除成功!");
location.reload();
}
}
else{
alert(
"该学号还没有被占用!请按学号查询再进行修改!");
return false;
}
}
else{
alert(
"学号非法!为5位数字!");
return false;
}
}


//取消新增
function can(){
document.getElementById(
"xh").value="";
document.getElementById(
"xm").value="";
document.getElementById(
"xb").value="";
document.getElementById(
"jg").value="";
document.getElementById(
"ad").style.visibility="hidden";
document.getElementById(
"can").style.visibility="hidden";
document.getElementById(
"qmd").style.visibility="hidden";
document.getElementById(
"add").value="新增";
}
//增加结点
function add_node(){
var oxh
= xmlDoc.createElement("学号");
oxh.appendChild(xmlDoc.createTextNode(xh.value));
var oxm
= xmlDoc.createElement("姓名");
oxm.appendChild(xmlDoc.createTextNode(xm.value));
var oxb
= xmlDoc.createElement("性别");
oxb.appendChild(xmlDoc.createTextNode(xb.value));
var ojg
= xmlDoc.createElement("籍贯");
ojg.appendChild(xmlDoc.createTextNode(jg.value));

var oxs
= xmlDoc.createElement("学生");
oxs.appendChild(oxh);
oxs.appendChild(oxm);
oxs.appendChild(oxb);
oxs.appendChild(ojg);

var parent
= xmlDoc.selectSingleNode("/学生管理");
if(parent.hasChildNodes()) {
parent.insertBefore(oxs,parent.firstChild);
}
else{
parent.appendChild(oxs);
}
}
//保存XML
function saveXML(){
xmlDoc.save(
"stu.xml");
}
//验证新增数据
function info_check(){
var renum
= /^\d{5}$/;
var rec
= /^[\u4E00-\u9FA5]{2,5}$/;
if(!renum.exec(document.getElementById("xh").value)){
alert(
"学号非法!为5位数字!");
return false;
}
if(!rec.exec(xm.value)){
alert(
"姓名非法!只能是中文最少两个字,最多不得超过5个字!");
return false;
}
//alert(xb.value!="男");
switch(xb.value){
case "":break;
case "":break;
default:alert("性别只能是\"男\"或\"女\"!"); return false;
}


if(!rec.exec(jg.value)){
alert(
"籍贯非法!只能是中文最少两个字,最多不得超过5个字!!");
return false;
}
return true;
}

//-->
</SCRIPT>

<input id="s" type=button value="显示学生信息" onclick="show();">
<input id="que" type=button value="精确查询" onclick="que();">
<input id="add" type=button value="新增" onclick="add();">
<input id="can" type=button value="取消" onclick="can();" style="visibility:hidden">

<br>
<center>
<div id="ad" style="visibility:hidden">
<table><tr><td>学号:
<input type=text id="xh" style="ime-mode:disabled" size=5 maxlength=5 onKeyPress="if ((event.keyCode<48 || event.keyCode>57)) event.returnValue=false"><!-- style 用于光闭输入法 onKeyPress 只能输入数字-->
</td><td>姓名:
<input type=text id="xm" size=10 maxlength=5>
</td><td>性别:
<input type=text id="xb" size=5 maxlength=5>
</td><td>籍贯:
<input type=text id="jg" size=10 maxlength=5>
</td>
</tr>
</table>
</div>
<div id="qmd" style="visibility:hidden">
<table>
<tr align="center">
<td></td>
<td><input id="que" type=button value="查询" onclick="query();"></td>
<td><input id="mod" type=button value="修改" onclick="mod();"></td>
<td><input id="del" type=button value="删除" onclick="del();"></td>
</tr>
</table>
</div>
</center>
<div id="findPanel">
<div id="findPanelTitle">可拖动</div>
<div id="findPanelContent">
<input type="text" size="20" value="a" id="key" onkeydown="javascript:ChckSubmit(event);">
<input type="button" value="查找" onclick="javascript:OnKeySubmit();">
</div>
</div>
<script language="javascript">
<!--
var findPanel
= document.getElementById("findPanel");
var findPanelTitle
= document.getElementById("findPanelTitle");
var findPanelContent
= document.getElementById("findPanelContent");
var findPanel_orgnX
= 50;
var findPanel_orgnY
= 50;

//设置物件位置
findPanel.style.pixelLeft = document.body.scrollLeft + findPanel_orgnX;
findPanel.style.pixelTop
= document.body.scrollTop + findPanel_orgnY;
//================================================================================
var foundCnt = 0; //已经找到了的结果的数量

//查找入口函数
function Find(key)
{
if (key == "")
{
return;
}

if (document.all)
{
IEFind(key);
}
else
{
NSFind(key);
}
}

//浏览器为 IE 系列
function IEFind(key)
{
var rng
= document.body.createTextRange();
var found
= false;
for (var i=0; i<=foundCnt && (found=rng.findText(key)); i++)
{
rng.moveStart(
"character", 1); //找到,后移一位以查找下一个
}

if (found)
{
rng.moveStart(
"character", -1);
rng.findText(key);
rng.select();
rng.scrollIntoView();
foundCnt
++;
}
else
{
if (foundCnt > 0)
{
//已经查找一遍,找到有符合条件的结果,重新开始查找
foundCnt = 0;
IEFind(key);
}
else
{
//已经查找一遍,没有找到符合条件的结果
alert("文档搜索完毕。");
}
}
}

//浏览器为 NS 系列
function NSFind(key)
{
if (window.find(key))
{
foundCnt
++;
}
else
{
var found
= false;
while (window.find(key, false, true))
{
found
= true;
}

if (found)
{
//已经查找一遍,找到有符合条件的结果,重新查找也已经开始
foundCnt = 1;
}
else
{
//已经查找一遍,没有找到符合条件的结果
alert("文档搜索完毕。");
}
}
}

function OnKeySubmit()
{
var key
= document.getElementById("key");
Find(key.value);
}

function ChckSubmit(e)
{
if (e.keyCode == 13)
{
OnKeySubmit();
}
}
//================================================================================
function RePosFindPanel()
{
findPanel.style.pixelLeft
= document.body.scrollLeft + findPanel_orgnX;
findPanel.style.pixelTop
= document.body.scrollTop + findPanel_orgnY;
}

document.body.onscroll
= RePosFindPanel;
document.body.onresize
= RePosFindPanel;
//================================================================================
//拖拽过程中相关变量
var draging = false; //是否处于拖拽中
var offsetX = 0; //X方向左右偏移量
var offsetY = 0; //Y方向上下偏移量

//准备拖拽
function BeforeDrag()
{
if (event.button != 1)
{
return;
}
offsetX
= document.body.scrollLeft + event.clientX-findPanel.style.pixelLeft;
offsetY
= document.body.scrollTop + event.clientY-findPanel.style.pixelTop;
draging
= true;
}

//拖拽中
function OnDrag()
{
if(!draging)
{
return;
}
//更新位置
findPanel_orgnX = event.clientX-offsetX;
findPanel_orgnY
= event.clientY-offsetY;
event.returnValue = false;
findPanel.style.pixelLeft
= document.body.scrollLeft + event.clientX-offsetX;
findPanel.style.pixelTop
= document.body.scrollTop + event.clientY-offsetY;
}

//结束拖拽
function EndDrag()
{
if (event.button != 1)
{
return;
}
draging
= false;
}

findPanelTitle.onmousedown
= BeforeDrag;
document.onmousemove
= OnDrag;
findPanelTitle.onmouseup
= EndDrag;
//-->
</script>
<xml id="stu" src="stu.xml">
</xml>
<center>
<div id="info" style="visibility:hidden">
<table DATASRC=#stu border=1 style="background-color:#a9eeef; Border-color
:red;" >
<caption><h2>学生信息管理</h2></caption>
<thead> 
<th>学号</th>
<th>姓名</th>  
<th>性别</th>  
<th>籍贯</th> 
</thead> 
<tr> 
<td>  
<div DATAFLD="学号">  
</td>  
<td>  
<div DATAFLD="姓名">
</td>  
<td>  
<div DATAFLD="性别">  
</td>  
<td>  
<div DATAFLD="籍贯"> 
</td> 
</tr> 
</table>
</div>


</center>
</body>
</html>

xml文件如下(stu.xml)

 

代码
<?xml version="1.0" encoding="gb2312"?>
<学生管理>
<学生>
 
<学号>97001</学号>
 
<姓名>王五</姓名>
 
<性别></性别>
 
<籍贯>上海</籍贯>
</学生>
<学生>
 
<学号>97002</学号>
 
<姓名>李四 </姓名>
 
<性别></性别>
 
<籍贯>浙江 </籍贯>
</学生>
<学生>
 
<学号>97006 </学号>
 
<姓名>张三 </姓名>
 
<性别></性别>
 
<籍贯>浙江</籍贯>
</学生>
</学生管理>

 

posted @ 2010-12-07 12:25  TerryChou  阅读(3305)  评论(0编辑  收藏  举报